I have a '79 R100RS that has started giving me fits. Not long ago the alternator (GEN) light started to glow increasingly as the RPM increased. It would not illuminate at idle. I have replaced the alternator and the voltage regulator. Now, the light stays on after the machine has been turned OFF!!! I have disconnected the battery until I can figure out what the heck is going on here. Has anyone experienced anything like this??? HELP. Thanks.